 Redesignated on 16 October 1997 as Company D, 158th Aviation, it was relieved from allotment to the army reserve, allotted to the regular army, and activated in Germany, where it was again inactivated on 15 October 2000.Nine days later it was relieved from allotment to the regular army, allotted again to the army reserve, and subsequently activated on 16 September 2002 at Victorville, California.The 5th Battalion was reorganized and redesignated in 1987 as a parent regiment under the United States Army Regimental System.